We have just completed multi-dialect Modula-2 support for Vim.
Details incl. screenshots are on the repo wiki at:
https://bitbucket.org/trijezdci/m2c-rework/wiki/ide
This is not yet in the official Vim release though. In the meantime, the support files can be downloaded from the repo, incl. README with instructions.
https://bitbucket.org/trijezdci/m2syntaxcolour/src/tip/Vim/
If anybody could try this on a Windows installation of GVIM and send us a screenshot so we can add it to the wiki, that would be nice, thanks.
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